The new park to be created next to South Village at Kirrawee is expected to be completed by October this year, with a children's playground to open two months earlier.
The timeframe is set out in a draft planning voluntary agreement (VPA) between the developer and Sutherland Shire Council, which is open for public comment until June 4.
The VPA was broadly agreed upon when the brick pit development was approved.
The developer will provide the 9000 square metre public park, which has tentatively been named Brick Kiln Park, along with a 1500 square metre multi-purpose space within the shopping centre.
The council still has to decide whether to use the shopping centre space for community purposes, such as a library, or convert it into shops and use the rental income for other community purposes.
The VPA includes a contribution of $500,000 by the developer to improve the Kirrawee shopping strip in Oak Road.
Retailers and the local community will be asked for their ideas in coming months.
The developer is also required to contribute $250,000 to road works within the precinct, which are already in place.
Traditional play elements for older and younger children are proposed within the inclusive playground, which will have shade picnic facilities with drinking fountains and bicycle parking.
The Sydney Turpentine Ironbark Forest remnant on the edge of the park will be retained and more trees planted.
The park will also include a pedestrian/cycle path, perimeter fencing and lighting on 'smart' poles with provision for CCTV and Wifi connectivity.
Public toilets will not be provided, but a sewer line will allow connection in the future if required.
"The park is expected to be completed by October, 2019," the draft VPA says.
"The playground within the new park is expected to be opened in mid-August.
"The area in the centre of the open space will be turfed and fenced off until October to allow the grass to establish.
"The entire open space is planned to be open before Christmas."
For further information, contact Sutherland Shire Council's Strategic Planning Unit at 9710 0800, or email: ssc@ssc.nsw.gov.au